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Carbon steel samples average surface pH at the end of the 15-day test in biotic conditions a
| Consortium 1 | Consortium 2 | |||
|---|---|---|---|---|
| C1 | C1 + M | C2 | C2 + M | |
| pH | 4.95 | 5.68 | 5.19 | 6.02 |
aMetal surface pH was determined from three measurements from three different samples
